Built in 1906 for George Kunhardt, a principal owner of textile mills in the Merrimack Valley, the estate later became known as Campion Hall when it served as a Jesuit retreat center.

[1] The George Kunhardt Estate is located in a rural residential setting in northeastern North Andover, overlooking Lake Cochichewick to the south.

The main house is a large and somewhat rambling 2+1⁄2-story Victorian structure, with asymmetrical massing and projecting sections typical of the Queen Anne style.

The exterior is finished in red brick, with limestone trim elements that include corner quoining and window sills and lintels.

[3] The estate house was designed by Stephen Codman of Boston, a close friend of George Kunhardt, owner of a textile mill complex in Lawrence.